Oil cleaner



Nov. 10, 1936. J, B, JARMIN l 2,060,320

OIL CLEANER Filed June 4, 1934 2 Sheets-Sheet 1 J. B. JARMIN OIL CLEANER Nov. 10, 1936.

2 Sheets-Sheet 2 Filed June 4, 1934 lll Illl

A 9... e g y l ,JM/ 6 5 6 n g i if; 94 s 23 6 5 m\ I. l 6/ 6 gw 5 6a, i 6 W G m Patented Nov. 10, 1936 UNITED STATES PATENT OFFICE OIL CLEANER James B. Jarmin, Dallas, Tex.

Application June 4,

2 Claims.

This invention relates to new and useful improvements in oil cleaners.

One object of the invention is to provide an improved oil cleaner for engines employing a circulating oil system.

A particular object of the invention is to provide an oil cleaner in which the cleaning pad is readily removable and wherein the pad is securely fastened around its edges so as to preclude escape of hot oil around said edge; together with means adjustable independently of the casing for fastening said pad in place.

An important object of the invention is to provide an improved oil cleaner in which the cleaning pad is removably mounted on a pos-t integral with the casing of the device and wherein the pad is securely fastened around the opening in the pad through which said post extends, so as to preclude escape of oil through said opening.

A particular object of the invention is to provide an improved oil cleaner for engines employing a circulation oil syistem and having means for by-passing the oil around the cleaner when said cleaner becomes clogged with dirt and grease, or for any other reason.

A further ob-ject of the invention is to provide a coarse mesh support for the cleaning pad, as well as a rigid one, whereby a greater portion of the top surface of the pad will be exposed for an unobstructed passage of the oil and also whereby the pad will be prevented from buckling.

Another object of the invention is to provide a cleaner which will be compact, simple and eflicient, as well as accessible and easily installed.

A construction designed to carry out the invention will be hereinafter described, together with other features of the invention.

The invention will be more readily understood from'a reading of the following specification and by reference to the accompanying drawings in which an example of the invention is shown, and wherein:

Figure 1 is a side elevation of an oil cleaner constructed in accordance with the invention and its supporting bracket,

Figure 2 is a transverse vertical sectional view of the same.

Figure 3 is a plan view,

Figure 4 is a perspective view of the spider,

Figure 5 is a side elevation of another form rof the invention.

Figure 6 is a transverse vertical sectional View of the same,

Figurep'? is a plan View,

1934, Serial No. 728,946

Figure 8 is a perspective view of the spider emp-loyed in the second form,

Figure 9 is a perspective view of the pad, and

Figure 10 is a perspective view of the mesh support.

This application is filed as a continuation in part of my co-pending application filed April l0, 1933, Serial Number 665,459.

In the drawings, the numeral I0 designates an annular metal case having a bowl II depending therefrom and forming an integral part thereof. The bowl is of less diameter than the case and is provided with a cylindrical boss I2 at its lower central portion. The upper annular edge of the case is thickened to form a lip I3, which engages within the double annular flange I4 of a frustoconical cap I5. An annular shoulder or seat I6 is formed betweenthe double annular flanges anda suitable packing gasket I'I is interposed between the upper edge of the case and this shoulder. When the cap and case are fastened together, the gasketl forms an oil-tight seal.

While the cleaner may be mounted in any suitable manner, I prefer to employ a yoke bracket I8 having an upper arm I9 and a lower arm 20. The bracket is provided with flanges 2| by which it may be fastened on the side or other part of an engine. The case and cap are mounted between the arms. The lower arm has a boss 22 and a tap bolt 23 screwed up through the same into the center of the boss I2, fastens the case to thearm.

The upper arm I9 has a boss 24 on its end and a crank 25 screw-threaded in said boss has its lower rounded end bearing in a sump 26 at the center of the cap. By operating the crank, the

cap is securely fastened to the case. It is pointed out that by loosening the cap and removing it, the case remains supported on the lower arm. The bowl Il is provided with a suitable drain plug 2l.

The bottom of the case I0 around the periphery of the bowl forms an annular seat 28 located at the intersection of the case proper and the bowl.

rested and prevented from passing upwardly with the oil. Y

A central screw-threaded post 32 has its lower end screwed into an elongated boss 33 which extends upwardlyl from the bottom ofthe bowl II.

The upper end of the boss is substantially flush with the seat 28 formed by the bottom of the case. The pad 29 is provided with a central aperture 34 receiving this post and the upper end of said post receives a wing nut 35 which bears against the upper end of the spider 39. The spider is provided with a marginal flange 36 having substantially the same diameter as the shoulder 28, and also has a central depending boss 31 which has a diameter slightly larger than the upper end of the boss 33. A washer 38 is inserted between the underside of the pad 29 and the upper end of the boss 33 to provide a greater supporting area for said pad at its central portion.

When the wing nut 35 is tightened down against the spider, the flange 36 embeds itself in the marginal edge of the pad and forces the latter into close contact with the seat 28, whereby a seal is provided and hot oil is prevented from by-passing around the edge or margin of said pad. At the same time the lower end of the central boss 31 of the spider embeds itself in the pad at the central portion thereof, thereby effectively clamping the center of said pad between the washer 38 and the boss. This provides an oil tight seal at the central portion of the pad and prevents oil by-passing through the central aperture 34 in the pad. Due to the fact that the pad is securely clamped at both its marginal edge and central portion, an effective oil tight seal is not only provided but upward buckling of the pad, due to the pressure of the oil passing therethrough, is prevented.

When it is desired to clean the device, it is simply necessary to rotate the crank 25 to loosen the cap I5, which may then be easily removed. By unscrewing and removing the wing nut 35, the spider and disk may be removed quickly and easily. The pad may be cleaned by washing in gasoline, or other cleaning fluid, or if its condition is too bad, a new pad may be substituted.

A nipple 31 is screwed into a boss 38 which is provided with a bore 39 communicating with the interior of the bowl I I below the pad and this nipple is connected to the oil line 40. The heavier particles of dirt and extraneous matter will tend to settle out of the oil and collect in the bowl II; however, such heavier particles which do not settle out will be arrested at the under surface of the pad. The finer or minute particles of extraneous matter not extracted at the surface of the pad will be removed from the oil as it passes through said pad. It is obvious that the oil which passes through the pad into the cap I will be thoroughly cleaned and this oil passes out through a bore 4I in the side of the case to a nipple 42 connected to the return line 43. The drain plug 21 may be removed from time to time to release accumulations in the bowl.

In case the operator fails to clean the bowl II or the pad becomes clogged for any reason, a bypass is provided to conduct the oil from the fuel line 40 to the return line 43. The by-pass includes a passage 44 which connects the inlet bore 39 and the outlet bore 4I. The passage is normally closed by a ball valve 45 which is held against a valve seat 45 by a coiled spring 41 which is confined within an upwardly extending housing 48 made integral with the casing. A disk 49 is positioned on the upper end of the spring and this disk is engaged by the lower end of an adjusting screw 49 which is threaded through a bearing 48' screwed into the upper end of the housing. A suitable lock nut 52' is positioned on the screw 49 and serves to hold said screw in adjusted positions. It is obvious that by rotating the screw 49 tension on the spring 41 is varied, whereby various pressures are necessary to unseat the ball. It is clear that when the pad becomes clogged or the bowl becomes lled with extraneous matter and the oil cannot pass through the cleaner, the pressure of the oil will unseat the ball valve and permit the oil to by-pass the cleaner. Thus, the lubrication of the engine will not be interfered with.

It is pointed out that the entire device is of a compact and simple nature and may be cleaned without the use of tools. The operator merely has to grasp the crank 25 and rotate the same to loosen the cap and remove said cap to obtain access to the interior. The wing nut 35 is readily unscrewed and removed, which permits the spider and pad to be removed. The oil lines 49 and 43 are directly connected to the case, which is always rigidly fastened to the bracket I8, and therefore said oil lines are never disturbed. This obviates possibilities of causing leaks in the oil lines and their connections or breaking the same. The pad is rigidly supported and clamped at both its marginal edge and central portion so as to function in a most efficient manner. The by-pass eliminates any danger of the cleaner clogging the oil line and interfering with the lubrication of the engine.

In Figures 4 to 9 I have shown another form of the invention. In this form, the numeral 50 designates an annular metal case having a frustoconical dome or top 5I provided with a cylindrical boss 52 at its apex. The lower annular edge of the case is thickened to form a lip 53, which fits snugly within the annular flange 54 of a cap 55. The cap has an annular shoulder or seat 56 supporting a packing gasket 51 engaging the under side of the lip. When the cap and case are fastened together, the gasket forms an oil-tight seal.

The cleaner is mounted in a yoke bracket 58 having an upper arm 59 and a lower arm 6U. The bracket is provided with anges 6I by which it may be fastened on the side or other part of an engine. The case and cap are mounted between the arms. The upper arm has a boss 62 and a tap bolt 63 screwed down through the same into the center of the boss 62, fastens the case to the arm.

The lower arm 60 has a boss 64 on its end and a crank 65 screw-threaded in said boss has its upper rounded end bearing in a sump 56 at the center of the cap. By operating the crank the cap is securely fastened to the case. It is pointed out that by loosening the cap and removing it, the case remains suspended from the upper arm. The cap is inclined downwardly toward its central sump 6B and is provided with a drain plug G1.

The case is provided with an annular overhanging shoulder or seat 68 located at the intersection of the case proper and the dome. A supporting disk E9 formed of coarse mesh fabric, such as hardware cloth, is mounted in the case so that its margin will bear against the under side of the shoulder. The circular cleaning pad 29 is placed against the under side of the disk and held in position by a spider 1I.

A central post 12 has its upper end screwed into a boss 13 depending from the center of the dome. The central aperture 34 of the pad receives this post and the lower end of the post is screw-threaded to receive a wing nut 15, which bears against the under side of the spider 1I. The spider is provided with a marginal flange 1G having substantially the same diameter as the shoulder 68. When the wing nut is screwed up against the spider, the flange 16 embeds itself in the marginal edge of the pad and forces the latter into close contact with the shoulder 68, whereby a seal is provided and hot oil is prevented from by-passing around the edge or margin of said pad. The coarse mesh disk 69 not only offers less obstruction to the upward passage of the oil than would occur where a ne mesh screen is used, but owing to its rigid nature, it provides a more substantial support and prevents upward buckling of the pad due to the pressure of the oil passing therethrough.

When it is desired to clean the device, it is simply necessary to rotate the crank 65 to loosen the cap 55, which may then be easily removed.

By unscrewing and removing the wing-nut 15,

the disk, pad and spider will drop out of the case into the hand of the operator. The pad may be cleaned by washing in gasoline or other cleaning fluid, or if its condition is too bad a new pad may be substituted.

A nipple 11 is screwed into the case 50 below the pad, and this is connected to the oil line 18. The oil flows from this line into the bottom of the case and being under pressure is forced upwardly through the pad 29. The heavier particles of dirt and extraneous matter will tend to settle out of the oil and collect in the cap 55; however, such heavier particles which do not settle out will be arrested at the under surface of the pad. The ner or minute particles of extraneous matter not extracted at the surface of the pad will be removed from the oil as it passes through said pad. It is obvious that the oil which passes through the pad into the dome I will be thoroughly cleaned and this oil passes out through a nipple 19 connected to the return line 80. The drain plug 61 may be removed from time to time to release accumulations in the cap 55.

It is pointed out that the entire device is of a compact and simple nature and may be cleaned without the use of tools. The operator merely has to grasp the crank 65 and rotate the same to loosen the cap to obtain access to the interior of the case. The nut 15 is readily unscrewed and removed, which permits the spider, pad and disk to drop out. The case 5U and its dome are not disturbed or moved and, therefore, the oil lines 18 and 80 are not in any way tampered with. This obviates possibilities of causing leaks in the oil lines and their connections or breaking the same. The pad is rigidly supported by the disk and securely clamped around its margin so as to function in the most eiicient manner. It is pointed out that in the second form, the spider does not have a central boss as does the spider in the rst form. Further, the disk 69 present in the second form is eliminated in the rst form, while the latter is provided with the by-pass which the second form does not have.

The description which has been given recites more or less detail of a particular embodiment of the invention, which is set forth as new and useful; however, I desire it understood that the invention is not limited to such exact details of construction, because it is manifest that changes and modifications may be made, within the scope of the appended claims, without departing from the spirit of the invention.

What I claim and desire to secure by Letters Patent, is:

1. An oil cleaner including, a bowl having an annular seat and a rim above the seat, an oil inlet in the wall of the bowl immediately below said seat and directed transversely of said bowl whereby a stream of oil under pressure may enter the bowl above and without disturbing depositsin the lower portion of the bowl, a circular fabric cleaning pad engaging in and extending across the bowl within its rim and having its margin overlying said seat immediately above the oil inlet, an axial support extending upwardly from the bottom of the bowl, said pad having its central portion resting on said support, a spider having its marginal portion engaging the margin of the pad and its central'portion engaging the center of the pad, the intermediate portion of said spider being above said pad, a fastening extending through the pad and connected with the support for securing the spider and confining the pad on the seat and support, the rim of the bowl having an oil outlet, a cover fitting on the rim of the bowl, a bracket for mounting the bowl and having a portion overhanging the cover, and means carried by the bracket for engaging the center of the cover, whereby the cover may be removed while the bowl is held by the bracket.

2. An oil cleaner including, a bowl having an annular seat and a rim above the seat, an oil inlet in the wall of the bowl immediately below said seat and directed transversely of said bowl whereby a stream of oil under pressure may enter the bowl above and without disturbing deposits in the lower portion of the bowl, a circular fabric cleaning pad engaging in and extending across the bowl within its rim and having its margin overlying said seat immediately above the oil inlet, an axial support extending upwardly from the bottom of the bowl, said pad having its central portion resting on said support, a nonrotatable spider having its marginal portion engaging the margin of the pad and its central portion engaging the center of the pad, the intermediate portion of said spider being above the pad, a fastening extending through the pad and connected with the support for securing the spider and confining the pad on the seat and support, the rim of the bowl having an oil outlet, a cover fitting on the rim of the bowl, a support for mounting the bowl, and means for removably fastening said cover on the bowl without detaching the bowl from its support.

JAMES B. JARMIN. 

